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560 FIELD MUSEUM OF NATURAL HISTORY BOTANY, VOL. XIX BRAZIL: Amazonas: Rio Putumayo, Jobert in 1877-78 (P). This rare species is best distinguished from its near relatives by the very fleshy flowers, which have a rather wide tube. 351. Passiflora Holtii <strong>Killip</strong>, sp. nov. Frutex subscandens, cirrhis tenuibus, ubique ovario excepto glaberrimus; folia ovata vel ovato-lanceolata, caudato-acuminata, valde reticulata, subcoriacea; inflorescentia pseudoracemosa; calycis tubus anguste cylindricus, sepalis petalisque anguste oblongis, obtusis; coronae filamenta biseriata, exteriora filiformia, interiora capillacea, operculum usque ad basin filamentosum, filamentis erectis; ovarium anguste ovoideum, rufo-sericeum. Subscandent shrub, the tendrils slender but well developed; plant glabrous throughout, except the ovary; stipules soon deciduous; petioles 3 to 5 mm. long, biglandular at apex, the glands scarlike, inconspicuous; leaves ovate or ovate-lanceolate, 12 to 15 cm. long, 6 to 8 cm. wide, caudate-acuminate (tip about 1.5 cm. long), rounded, occasionally suboblique, at base, penninerved (principal lateral nerves 6 or 7 to a side), conspicuously reticulate-veined, entire, subcoriaceous, lustrous; inflorescence pseudoracemose, the rachis 15 to 30 cm. long, floriferous only above middle, bearing a few abortive leaves, the pedicels 1 to 1.5 mm. long, thick, erect; calyx tube narrowly cylindric, 3.5 cm. long, 4 to 6 mm. in diameter, ventricose at base; sepals narrowly oblong, about 2 cm. long and 5 mm. wide, obtuse; petals similar and equal to the sepals; corona filaments in 2 series, the outer filiform, about 2.5 mm. long, the inner capillary, about 1 mm. long; operculum borne just below middle of tube, erect, filamentose to base, the filaments 4 to 5 mm. long; gynophore slender, 5 cm. long; ovary narrowly ovoid, rufo-sericeous. Type in the United States National Herbarium, No. 1,472,096, collected at Cucuhy, Rio Negro, State of Amazonas, Brazil, altitude about 117 meters, February 5, 1930, by E. G. Holt and W. Gehriger (No. 384). The National Geographic Society's expedition to the little explored region where the frontiers of Brazil, Venezuela, and Colombia meet brought back an exceptionally interesting series of Passifloraceae. Although this is the single novelty in the collection, the other specimens all represent species that are very little known. Passiflora Holtii is related to P. spicata and P. pyrrhantha. From the former, which it resembles in having very short petioles and long-tipped leaves, it differs in the outer corona filaments being
AMERICAN PASSIFLORACEAE 561 filiform rather than falcate-dilated, and in having a more slender calyx tube and longer racemes. From P. pyrrhantha, which also has leaves of much the same shape, it differs in the shorter petioles, narrower, glabrous calyx tube, and more slender sepals and petals. 352. Passiflora pyrrhantha Harms, Notizbl. Bot. Gart. Berlin 9: 977. 1926. Scandent shrub with a few tendrils, the younger branches puberulous; stipules soon deciduous; petioles 1 to 3 cm. long, biglandular at apex; leaves ovate or ovate-oblong, 10 to 16 cm. long, 6 to 10 cm. wide, acuminulate at apex, rounded at base, penninerved (principal lateral nerves 5 or 6 to a side), remotely denticulate in upper half, subcoriaceous, glabrous; inflorescence racemose, the racemes 7 cm. long or more, short-velutinous, the pedicels 2 to 3 mm. long, thick; calyx tube cylindric, 4.5 to 5 cm. long, nearly 2 cm. in diameter at throat, ventricose at base, appressed-puberulous, fire-red; sepals narrowly oblong, about 3 cm. long, 1 cm. wide, obtuse, orange at middle without; petals subequal to the sepals, fire-red; corona filaments in 2 series, the outer about 6 mm. long, slightly falcate-dilated, citron-yellow, the inner subulate, very short; operculum borne at middle of tube, erect, filamentose nearly to base, the filaments about 1.3 cm. long; ovary ovoid, velutinous. Peru. Peru. TYPE LOCALITY: Puerto Metendez, Pongo de Manseriche, Loreto, DISTRIBUTION: Known only from the type locality, in northern PERU: Loreto: Puerto Mele"ndez, Pongo de Manseriche, Tessmann 4770 (B, type, N). 353. Passiflora spinosa (Poepp. & Endl.) Mast. Trans. Linn. Soc. 27: 630. 1871; in Mart. Fl. Bras. 13, pt. 1: 576. 1872. Tacsonia spinosa Poepp. & Endl. Nov. Gen. & Sp. 2: 59. pi. 181. 1835. Distephana spinosa M. Roemer, Fam. Nat. Syn. 2: 199. 1846. C!)Tacsonia coccinea Barb. Rodr. Vellosia 1: 23. 1891; 3, pt. 1: pi. 11. 1891. Not Passiflora coccinea Aubl. Woody vine, the tendrils often reduced to straight or recurved, stout spines up to 1 cm. long; plant glabrous throughout, except the ovary; stipules soon deciduous; petioles 1.5 to 2.5 cm. long, thick, biglandular at apex; leaves oblong, 10 to 17 cm. long, 3 to 9 cm. wide, acuminate, rounded at base, penninerved (principal lateral
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THE UNIVERSITY OF ILLINOIS
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THE AMERICAN SPECIES OF PASSIFLORAC
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PRINTED IN THE UNITED STATES OF AME
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UNIVERSITY OF ILLINOIS-URBANA
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